1 files changed, 118 insertions, 0 deletions
diff --git a/Hotline/Network/HotlineProtocol.swift b/Hotline/Network/HotlineProtocol.swift
new file mode 100644
index 0000000..787675e
--- /dev/null
+++ b/Hotline/Network/HotlineProtocol.swift
@@ -0,0 +1,118 @@
+import Foundation
+
+struct HotlineServer: Identifiable, Hashable {
+  let id = UUID()
+  let address: String
+  let port: UInt16
+  let users: UInt16
+  let name: String?
+  let description: String?
+  
+  static func == (lhs: HotlineServer, rhs: HotlineServer) -> Bool {
+    return lhs.id == rhs.id
+  }
+  
+  func hash(into hasher: inout Hasher) {
+    hasher.combine(self.id)
+  }
+}
+
+struct HotlineTransactionParameter {
+  let id: UInt16
+  let dataSize: UInt16
+  let data: Data
+}
+
+struct HotlineTransaction {
+  static let headerSize = 20
+  
+  let flags: UInt8
+  let isReply: UInt8
+  let type: HotlineTransactionType
+  let id: UInt32
+  let errorCode: UInt32
+  let totalSize: UInt32
+  let dataSize: UInt32
+  
+  var parameterCount: UInt16 = 0
+  var parameters: [HotlineTransactionParameter]? = nil
+  
+  func encode(to data: inout Data) {
+    data.appendUInt8(self.flags)
+    data.appendUInt8(self.isReply)
+    data.appendUInt16(self.type.rawValue)
+    data.appendUInt32(self.id)
+    data.appendUInt32(self.errorCode)
+    data.appendUInt32(self.totalSize)
+    data.appendUInt32(self.dataSize)
+    
+    if let p = self.parameters, p.count > 0 {
+      data.appendUInt16(UInt16(p.count))
+      for param in p {
+        data.appendUInt16(param.id)
+        data.appendUInt16(param.dataSize)
+        data.append(param.data)
+      }
+    }
+  }
+}
+
+enum HotlineTransactionType: UInt16 {
+  case unknown = 0
+  case error = 100
+  case getMessages = 101
+  case newMessage = 102
+  case oldPostNews = 103
+  case serverMessage = 104
+  case sendChat = 105
+  case chatMessage = 106
+  case login = 107
+  case sendInstantMessage = 108
+  case showAgreement = 109
+  case disconnectUser = 110
+  case disconnectMessage = 111
+  case inviteToNewChat = 112
+  case inviteToChat = 113
+  case rejectChatInvite = 114
+  case joinChat = 115
+  case leaveChat = 116
+  case notifyChatOfUserChange = 117
+  case notifyChatOfUserDelete = 118
+  case notifyChatSubject = 119
+  case setChatSubject = 120
+  case agreed = 121
+  case serverBanner = 122
+  case getFileNameList = 200
+  case downloadFile = 202
+  case uploadFile = 203
+  case deleteFile = 204
+  case newFolder = 205
+  case getFileInfo = 206
+  case setFileInfo = 207
+  case moveFile = 208
+  case makeFileAlias = 209
+  case downloadFolder = 210
+  case downloadInfo = 211
+  case downloadBanner = 212
+  case uploadFolder = 213
+  case getUserNameList = 300
+  case notifyOfUserChange = 301
+  case notifyOfUserDelete = 302
+  case getClientInfoText = 303
+  case setClientUserInfo = 304
+  case newUser = 350
+  case deleteUser = 351
+  case getUser = 352
+  case setUser = 353
+  case userAccess = 354
+  case userBroadcast = 355
+  case getNewsCategoryNameList = 370
+  case getNewsArticleNameList = 371
+  case deleteNewsItem = 380
+  case newNewsFolder = 381
+  case newNewsCategory = 382
+  case getNewsArticleData = 400
+  case postNewsArticle = 410
+  case deleteNewsArticle = 411
+}
+